The evaluation of the radiation hazards accompanying the production, use, or existence of radioactive materials under a specific set of conditions. Such evaluation customarily includes a physical survey of the disposition of materials and equipment, measurements or estimates ...
The factor by which the absorbed dose (rad or gray) is to be multiplied to obtain a quantity that expresses, on a common scale for all ionizing radiation, the biological damage (rem or sievert) to an exposed individual. It is used because some types of radiation, such as alph...
A facility that uses high doses of radiation to sterilize or treat products, such as food and spices, medical supplies, and wood flooring. Irradiation can be used to eliminate harmful bacteria, germs, and insects or for hardening or other purposes. The radiation does not leave...
One thousandth of a rem (0.001 rem).
A colloquial term meaning highly radioactive.
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Ross ISR Project - Technical Report 1 of 3 February 2014PageOriginal Location1Revision Source of Revision3-15 ¶ 1, Line 7 Changed "would" to "will" Correction based on Draft License Condition 9.23-20 ¶ 3, Line 9 Changed "would" to "will" Correction based on Draft License Condi...
9WWW99WEB LINK INDEXWEB LINK INDEX190Web Link IndexNRC: An Independent Regulatory AgencyMission, Goals, and Statutory AuthorityStrategic Plan (NUREG-1614)https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1614/ Statutory Authorityhttps://www.nrc.gov/about-nrc/govern...
'-, v UNITED STATESNUCLEAR REGULATORY COMMISSIONWASHINGTON, 0. C. 2055589000773 -first t JUNI 13 1983NOTE TO: ALL INTERESTED PARTIESThe following document is being distributed for your information and/orcomment:Draft Technical Position on Tectonic Models in the Assessmentof Pe...
U.S. NUCLEAR REGULATORY COMMISSION MANAGEMENT DIRECTIVE (MD) MD 8.8 MANAGEMENT OF ALLEGATIONS DT-17-162 Volume 8: Licensee Oversight Programs Approved By: Victor M. McCree Executive Director for Operations Date Approved: January 29, 2016 Cert. Date: N/A, for the latest...
Note on redline-strikeout version: To improve readability and highlight changes to the positions in the CA BTP, this redline-strikeout document does not include the following appendices, all of which are either new or unchanged from the August 2011 draft: Appendix C, staff ...
A group of two or more U.S. States that have formed alliances to dispose of low-level radioactive waste (LLW). For details, see Low-Level Waste Disposal, and for locations, see Low-Level Waste Compacts.
A radioisotope that tends to accumulate in the bones when it is introduced into the body. An example is strontium-90, which behaves chemically like calcium.
A mathematical formulation, using Bayes' theorem, by which the likelihood of an event can be estimated taking explicit consideration of certain contextual features (such as amount of data, nature of decision, etc.).
The number of positively charged protons in the nucleus of an atom.
A neutron with kinetic energy greater than its surroundings when released during fission.
Any device that transfers heat from one fluid (liquid or gas) to another fluid or to the environment.
A form of carbon, similar to that used in pencils, used as a moderator in some nuclear reactors.
The dose of ionizing radiation delivered per unit time. For example, rems or sieverts (Sv) per hour.
The containment structure enclosing the vessel and recirculation system of a boiling-water reactor. The drywell provides both a pressure suppression system and a fission product barrier under accident conditions. For related information, see Boiling-Water Reactors.
Uranium enriched to at least 20 percent uranium-235 (a higher concentration than exists in natural uranium ore). For detail, see Uranium Enrichment.
A uranium enrichment process used to prepare uranium for use in fabricating fuel for nuclear reactors by separating its isotopes (as gases) based on their slight difference in velocity. (Lighter isotopes diffuse faster through a porous membrane or vessel than do heavier isotop...
The highly radioactive materials produced as byproducts of fuel reprocessing or of the reactions that occur inside nuclear reactors. HLW includes:Irradiated spent nuclear fuel discharged from commercial nuclear power reactorsThe highly radioactive liquid and solid materials r...
The maximum amount of electricity that the main generating unit of a nuclear power reactor can reliably produce during the summer or winter (usually summer, but whichever represents the most restrictive seasonal conditions, with the least electrical output). The dependable ca...
A method for storing spent nuclear fuel in special containers known as casks. After fuel has been cooled in a spent fuel pool for at least 1 year, dry cask storage allows spent fuel assemblies to be sealed in casks or canisters and surrounded by inert gas. They are welded or...